Quassel IRC vs WeeChat
A side-by-side comparison of two self-hosted chat & communication options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Quassel IRC | WeeChat |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 57 · Fair | 88 · Excellent |
| Category | Chat & Communication | Chat & Communication |
| License | GPL-3.0 | GPL-3.0 |
| Language | C++ | C |
| Setup difficulty | Medium | Medium |
| Min. RAM | 128 MB | 64 MB |
| Deployment | docker, binary, source | bare-metal, binary, source |
| GitHub stars | ★ 794 | ★ 3,393 |
| First released | 2008 | 2003 |
| Replaces | Slack | Slack |
What are Quassel IRC and WeeChat?
Quassel IRC
Quassel is a distributed IRC client built around a central core that stays connected and one or more clients that attach to it. The core acts as a permanent bouncer storing backlog for all devices.
- Always-on core bouncer
- Synced backlog across devices
- Qt desktop clients
- PostgreSQL or SQLite storage
WeeChat
WeeChat is a fast, lightweight chat client that runs in the terminal and supports IRC and many other protocols through plugins. Its relay protocol allows remote clients to connect to a persistent session.
- Terminal interface
- Scriptable in many languages
- Relay protocol for remote clients
- Highly extensible
Quassel IRC vs WeeChat: key differences
Quassel IRC is written in C++, while WeeChat is built with C. WeeChat is the lighter option, starting around 64 MB of RAM against 128 MB for Quassel IRC. WeeChat is the more established project (first released 2003), while Quassel IRC arrived in 2008. WeeChat has the considerably larger community, at 3,393 GitHub stars versus 794. Quassel IRC lists first-class Docker deployment; WeeChat does not.
Why pick each one
Choose Quassel IRC if…
- Released under the GPL-3.0 license
- First-class Docker support for quick deployment
- Written in C++
- Tiny footprint — runs in 128 MB RAM
Choose WeeChat if…
- Released under the GPL-3.0 license
- Active community (3.4k GitHub stars)
- Written in C
- Tiny footprint — runs in 64 MB RAM
Frequently asked questions
Is Quassel IRC or WeeChat better?
Neither is universally better. WeeChat has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Quassel IRC and WeeChat free and open-source?
Yes. Quassel IRC is licensed under GPL-3.0 and WeeChat under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Quassel IRC and WeeChat with Docker?
Quassel IRC: yes. WeeChat: check the project docs for container support.
Which is lighter on resources, Quassel IRC or WeeChat?
WeeChat has the smaller minimum footprint at 64 MB of RAM, compared to about 128 MB for Quassel IRC. Real-world usage depends on library size, user count, and enabled features.